کنفرانس بین المللی میکروالکترونیک ایران

صفحه اصلی / هفتمین کنفرانس بین المللی میکروالکترونیک ایران

A 12-bit, 100-MS/s Two-Channel Time-Interleaved SAR ADC with a Novel Offset Error Cancellation Method

نویسندگان :

Seyed Kian Mousavikia¹ Majid Vatan Parast Aghdami² Morteza Mousazadeh³ Khayrollah Hadidi⁴

1- دانشگاه ارومیه 2- دانشگاه تبریز 3- دانشگاه ارومیه 4- دانشگاه ارومیه

کلمات کلیدی :

SAR ADC،Time-Interleaved،Offset Error Correction،Switched Capacitor Circuit،CMOS

چکیده :

This paper presents a 12-bit, two-channel time-interleaved successive approximation register (SAR) analog-to-digital converter (ADC). Each SAR ADC operates at a 50 MHz sampling rate, resulting in an overall sampling rate of 100 MHz for the dual-channel interleaved ADC. Also, a novel method is proposed to cancel the offset error of the dual-channel ADC by averaging the outputs of both ADCs. The ADC is simulated in a 0.18 µm CMOS 2P6M process, achieving an effective number of bits (ENOB) of 11.59 at the Nyquist frequency while consuming 10.44 mW of power from a 1.8 V supply.

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بیشتر

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